.news_list {
    display: flex;
    flex-wrap: wrap;
    margin: 40px auto;
    width: 100%;
    padding: 0 5px;
    box-sizing: border-box;
}

/* 第一个li 占满宽位置调换--------------------------------------------------------- */
.news_list li:nth-child(1) {
    display: flex;
    flex-flow: row-reverse;
    width: 100%;
}

/* 放图片div宽度占比66.6% */
.news_list li:nth-child(1)>div {
    width: 66.6%;
}

.news_list li:nth-child(1)>div>img {
    height: 100%;
}

/*  文字div宽度占比33.3%*/
.news_list li:nth-child(1) .introduce_box {
    width: calc(33.3%);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 上下标题div */
.news_list li:nth-child(1) .title {
    margin: 0 auto;
    width: 80%;
    box-sizing: border-box;
}

/* 大标题，限制两行超出省略号代替  */
.news_list li:nth-child(1) .title p:nth-child(1) {
    font-size: 40px;
    overflow: hidden;
    white-space: normal;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* 小标题，限制三行超出省略号代替 */
.news_list li:nth-child(1) .title p:nth-child(2) {
    line-height: 23px;
    width: 100%;
    height: 72px;
    overflow: hidden;
    white-space: normal;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* 日期和按钮div,切换成上下布局 */
.news_list li:nth-child(1) .detail {
    margin: 0 auto;
    width: 80%;
    height: 90px;
    text-align: left;
    display: flex;
    flex-direction: column;
    align-items: baseline;
}

/* -------end---------------------------------------------------------------------------------- */


.news_box {
    margin: 5px;
    cursor: pointer;
    width: calc(33.3% - 10px);
}

.news_box img {
    display: block;
    width: 100%;
}

.introduce_box {
    box-sizing: border-box;
    padding: 35px 15px 35px 15px;
    background-color: #ffffff;
}

.news_box:hover .introduce_box {
    transition: all 1s ease-out;
    background-color: #ececec;
}

.top_title {
    width: 100%;
    font-size: 24px;
    white-space: nowrap;
    /* 不换行 */
    overflow: hidden;
    /* 隐藏超出的内容 */
    text-overflow: ellipsis;
}

.top_title:hover {
    color: #D80C24;
    transition: all .3s ease-out;

}

.below_title {
    font-size: 14px;

    line-height: 25px;
    height: 47px;
    margin: 20px 0 33px 0;
    overflow: hidden;
    white-space: normal;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}



.detail {
    height: 41px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.detail>span {
    color: rgba(204, 204, 204, 1);
    font-size: 20px;
}

.more {
    width: 128px;
    height: 41px;
    line-height: 41px;
    font-size: 12px;
    display: block;
    font-weight: bold;
    color: rgba(216, 12, 36, 1);
    border: 1px solid rgba(216, 12, 36, 1);
    text-align: center;
    transition: all 0.6s;
    cursor: pointer;
}

.more:hover {
    animation: box-shadow-drop-bottom 0.6s both;
    color: #ffffff;
    background-color: rgba(216, 12, 36, 1);
}

/* ------- */
.news_container {
    padding: 50px 0 88px 0;
    width: 100%;
    background: rgba(241, 241, 241, 1);
}

.select_container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.fade-out {
    animation: fadeOut 1.5s;
}

@keyframes fadeOut {
    0% {
        opacity: 0;
        transform: translateX(-25px);
    }

    100% {
        opacity: 1;
        transform: translateX(0px);
    }
}


.search_text {
    font-size: 24px;
}

.select {
    display: block;
    /* margin: 0 auto; */
    width: 300px;
    height: 50px;
    font-size: 20px;
}

/* ------------------------------ */
.image_container {
    position: relative;
    overflow: hidden;
    width: 100%;
}

.banner {
    display: block;
    width: 100%;
    object-fit: cover;
    height: 100vh;
    -webkit-animation: kenburns-top 1s ease-out both;
    animation: kenburns-top 1s ease-out both;
}

@keyframes kenburns-top {
    0% {
        -webkit-transform: scale(1) translateY(0);
        transform: scale(1) translateY(0);
        -webkit-transform-origin: 50% 16%;
        transform-origin: 50% 16%;
    }
    100% {
        -webkit-transform: scale(1.01) translateY(-15px);
        transform: scale(1.01) translateY(-15px);
        -webkit-transform-origin: top;
        transform-origin: top;
    }
}

.arrow {
    display: block;
    position: absolute;
    width: 30px;
    height: 15px;
    bottom: 20px;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: floatAnimation 2.3s infinite;
    /* 指定动画名称和循环次数 */
}

@keyframes floatAnimation {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0);
    }
}

/* 查看更多 */
.view_more {
    width: 200px;
    height: 65px;
    line-height: 65px;
    font-size: 18px;
    display: block;
    font-weight: bold;
    color: rgba(216, 12, 36, 1);
    border: 1px solid rgba(216, 12, 36, 1);
    margin: 100px auto 88px auto;
    text-align: center;
    transition: all 0.6s;
    cursor: pointer;
}

.view_more:hover {
    animation: box-shadow-drop-bottom 0.6s both;
    color: #ffffff;
    background-color: rgba(216, 12, 36, 1);
}

.empty {
    font-size: 18px;
    display: block;
    font-weight: bold;
    color: rgba(216, 12, 36, 1);
    margin: 80px auto 60px auto;
    text-align: center;
}